npm

mozjpeg

Improved JPEG encoder with better compression than libjpeg

brewmacoslinux
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Source

About

Improved JPEG encoder

Commands

cjpegdjpegjpegtran

Examples

Encode a PNG image to optimized JPEG$ cjpeg -quality 85 input.png -o output.jpg
Decode JPEG to PPM format for inspection$ djpeg input.jpg -ppm -o output.ppm
Losslessly transform JPEG (rotate 90 degrees)$ jpegtran -rotate 90 input.jpg -o output.jpg